Heat-insulating vessel.



0. HUBERT. HEAT INSULATING VESSEL. APILIGATION FILED AUG.20,, 190a.

Patented Aug. 29, 1911.

CONRAD HUBERT, NEW YORK, N. Y.

HEAT-INSULATING VESSEL.

I Specification of Letters Patent.

Patented Aug. 29, 1911.

Application filed August 20, 1908. Serial No. 449,528.

To all whom it may concern: 7

Be it known that I, CONRAD HUBERT, a citizen of the United States,residing at the borough of Manhattan, city of New York, in the county ofNew York and State of New York, have invented a certain new and usefulImprovement in Heat Insulating Vessels, of which the following is aspecification, reference being had therein to the accompanying drawings,forming part thereof.

My invention relates to heat insulating vessels having double wallsinclosing between them a vacuum space.

Vessels of this class have heretofore been devised mainly for thepurpose of containing liquids and have been impractical for use withsolids, such as ice cream, for example.

One object of my invention is to provide a vessel which will beserviceable for solids as well as liquids.

Other objects are convenience, reliability, economy, and facility ofmanufacture.

Other objects and advantages of my invention will appear from thefollowing description.

I shall now describe my invention with reference to the accompanyingdrawings and shall thereafter point out my invention in claims.

Figure 1 is an elevation of my improved vessel showing the protectivejacket, the interposed cushion, the gasket and the 'connecting bandpartially in section. Fig. 2 is an elevation showing the partsdisassembled and one of the containing portions in vertical centralsection.

The two cup-shaped receptacle members 1 and 2 are in every respectsubstantial duplicates of one another, and, hence, a description of onewill apply to either and I shall therefore confine myself to adescription of the member 1. This has an inner and outer wall 3 and 4,respectively, preferably of glass or other vitreous material, joinedtogether at the mouth and containing between them a vacuum space 5, fromwhich the air is exhausted at some convenient point, as through the. tip6, which is then fused shut. To increase the heat insulating efliciencyof the vacuum, the inner surfaces of the walls may be silvered as iscommonlydone. This receptacle member is provided with embracing meanssuch as the usual outer casing or protective jacket 7, which is clenchedor bent over the mouth of the vitreous reeep- -Paris.

conductive material is placed within the jacketing member so that thebottom of the vitreous member rests upon it and is supported thereby. Toprotect the tip 6 from injury, it is inserted within the ring 10 and maybe provided further with a protective cap 11 of the same material as thering 10.

To combine the two receptacle members 1 and 2 into one vessel, they areplaced with their mouths together and thus secured, as shown in Fig. 1.For this purpose the con necting band or collar 12 is used. This isprovided with screw-threads, which engage corresponding screw-threadedportions of the casings near their mouths and thus hold the two memberstogether. An insulated joint is formed by interposing an annular gasket13 of rubber or other suitable heatinsulating material. This is shown inthe drawings as consisting of two rings with one placed upon the other,though obviously one whose thickness equals that of the two would servethe same purpose.

In the embodiment of my invention shown in the drawings and abovedescribed, I employ two substantially similar receptaole members, thoughobviously these could differ in size and could be made in any shape tosuit the convenience; and it is obvious that other methods of joiningthe two members could be employed and various other modifications couldbe made in the construction shown and above particularly describedwithin the principle and scope of my invention. A

, I claim:

-1. A heat insulating vessel comprising two' members, each a containingmember'having double walls joined at the mouth of the member, andseparable embracing means for the heat insulating containing-members tohold the two containing-members together to form a single closedheat-insulating vessel.

2. A heat insulating vessel comprising two vacuum insulatedcontaining-members, protective jackets for the containing-members, andmeans for joining the protective jackets together at the mouths of thecontaining-members to form a single heat insulating vessel. t

3. A heat insulating vessel comprising two vacuum insulatedcontaining-members, protective jackets for thecontaining-inembers, and aconnecting collar for joining the protective jackets together at themouths of the containing-members to form a single heat insulatingvessel.

4. A heat insulating vessel comprising two vacuum insulatedcontaining-'members, protective jackets for the containing-members,

- and means on theprotective jackets for j oin ing the twocontaining-members together at their. mouths to form a single heatinsulating vessel.

5. Aheat insulating vessel comprising two vacuum insulatedcontaining-members, protect-ive jackets for the containing-members, anda connecting collar for joining the pro tective jackets together at themouths of the containing-members. to form a single heat insulatingvessel.

6. In combination, two substantially similar heat insulatingcontaining-members, protective jackets for the containing members havingscrew-threaded portions near their mouths, a connecting collar providedwith screw-threads and adapted to join the two containingmemberstogether at theilr mouths to form a single heat insulating vessel, and agasket interposedat the juncture of the two members to form an insulatedjoint.

In testimony whereof I affix my signature in presence of two witnesses;

' CONRAD HUBERT.

\Vitnesses:

HARRY Lewis,

JACOB W. Voomus.

